WMTIRE is our resident tire man.
He and a few others are trying out some new size/type tires. I believe he is waiting for some real world data to come back from his test subjects.. Folks he has sent some test tires to. It is just going to take a little time to get the results back from the testing. There is a WHOLE bunch of data on the subject listed in the forum. Have you taken a look a this thread?
Another (!) tire failure.
Located in Tires, Tires, Tires,
Till then, load the TM as light as you can, watch the air pressure, ( you can get another spare as I have ) and go for it!